Cement-block mold.



F. ZAGELMEYER.

I CEMENT BLOCK MOLD I APPLICATION FILED FEB. 7. I9I3- 1,218,737.

PatentedMar. 13, 1917.

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F. ZAGELMEYER. CEMENT BLOCK MOLD. APPLICATION 'mzo FEB. 1. 1913.

131387. Patented Max:153, 1917.

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F. ZAGELMEYE'R. CEMENTBLOCK MOLD. APPLICATION FILED H8. 7. I913- Patenfed Mar. 13, 1917.

WITNESSES:-

M I i v I INYENTOR ZVW W Y i ATTORNEY F. ZAGELMEYER.

CEMENT BLOCK MOLD.

APPLICATION man FEB. 1. 1913.

,?? v v Patented Mar.13,1917'. v 4 SljlEETS-SgQEFT 4:-

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- FRANK ZAGELMEYER, or BAY CITY, MICHIGAN.

CEMENT-BLOCK MOLD.

Specification of Letters Patent.

Application filed February 7, 1913. Serial No. 746,943.

binations of parts in multiple block molds,

such as are used in the manufacture of concrete blocks by the wet or pouring process.

The improvements relate more particularly to a multiple mold adapted to the manufacture of blocks formed with transverse cores and having their ends. recessed, although it will be understood that my improvement may be adapted to blocks of other forms.

The object of the invention is to provide a '1 multiple mold adapted to be used on a truck,

run on a railway track, the construction of the mold being such that the parts are interchangeable, of simple construction, and have great strength and durability, yet adapted. 'to be made of comparatively light metal.

Another object is to provide a connection between the longitudinal and transverse partitions whereby the joint is made self-cleaning, requiring no expenditure of time or labor to clean out the j oint in order that the' partitions may fit properly.

Another object is to provide a simple means of locking the expansible cores to the partitions, and means for clamping the assembled cells firmly together.

' The parts are so constructed that trucks containing a greater or less number of cells may be readily assembled.

WYith these and certain other objects in view which will appear later in the specification, my invention consists in the devices described and claimed and the equivalents thereof.

In the drmvings,ligl1re 1 is a side perspective showing a truck with the cells 'in ,place, the expansible cores being removed;

Fig. 2 is a side View in perspective of a truck having the cores in place; F1g. 3 1s a view showing the truck with the cells partly assembled; Fig, 4: is a perspective detail showing the construction of the joint between the transverse and longitudinal parti tlons; Fig. 5 isa perspective detail showing one end of the car and the means for clamping the cells together; Fig.6 is an enlarged perspective end view of one of the expansible cores; Fig. 7 is a perspective detail of the wedge by which the cores are expanded; F g. 8 1s a perspective view of a pallet; Fig. 9 1s a top plan view of the parts shown'in Fig; 4; Fig. 10 is a side view of the clamping device; and Fig. 11 is a fragmentary perspective view of the clamping device as seen from the side. i

As is clearly shown in the drawings, 1 represents the longitudinal frame members of the truck, and 2 the transverse frame members carried .by them. The transverse members 2 have fixed to their ends projections 3 to hold the cells in line transversely. 4 represents a pallet, there being as many pallets" to each truck as there are cells. The

pallets are provided with legs 5 resting on the transverse members 2. v

6 1s atransverse partition separating the cells at the ends of the blocks. At the ends of the truck are transverse end members? corresponding in shape to one-half of one of the partitions 6.

The length of thepartitions 6 and end members 7 is such as to fit between the proections 3.

Patented Mar. is, raw;

Located at intervals across the truck and corresponding to the'height of the block are longitudinal partitions 8 formed of fiat plates and having openings 9 to receive the expansiblc cores.

,The ends of the partitions 8 are received in slots formed in the transverse cell parti-l tions (3, as will be presently described.

One of the end members 7 is provided with a horizontally projecting flangelO of angle iron or other suitable construction near its upper edge and a smnlar projecting flange 11 at its lower edge. These flanges take against upright end pieces 12 fixed to the longitudinal frame members 1, as shown in Fig. 2;

At the opposite end of the truck, upright end pieces 13 are provided, having their innor edges inclined as at 14 in Figs. 5 and'll,

to allow a round bar or pipe 15 to be dropped between the end pieces 18 and two upright angles 16, 16, that are fixed at their upper ends to flange 10 and at their lower ends to flange 11.

Each transverse partition is preferably made of two plates; each of which is formed with a longitudinal depression or offset 17, the crosssectional contour of which is the sa e as the cross-sectional contour of the recessed end of the finished block.

One only of these plates is used to form a transverse end member 7, but two plates fastened together with their oflsets l7 opposite each other are used for each of the intermediate transverse partitions as shown in Fig. 2.

At intervals along the length of the transverse partitions, and spread apart by distances corresponding to the height ,of the finished block, are slots 18 of sufficient width to receive a longitudinal partition 8, the slots being formed only in the offset part 17, so that the ends of the longitudinal partitions 8 project into the offset parts of the transverse partition 6, as shown in Figs. 4 and 9. r I

Each transverse partition, therefore, serves to hold a number of longitudinal partitions against both lengthwise and transverse movement. The partition 6 is hollow, and it is, therefore, never necessary to clean out cement from the slots 18. The inserting of blades 8 automatically cleans the slots.

Since the partitions 8 are arranged end to end on the truck, the pipe 15 when dropped in place, will automatically clamp all of the longitudinal plates and transverse partitions in place.

The construction above described is equally well adapted to the manufacture of blocks with solid bodies and recessed ends or cored bodies and recessed ends, although I have illustrated it as applied to the latter type of blocks.

The openings 9 in the longitudinal partitions S'receive expansible cores l9 preferably formed of sheet metal. These cores extend from side to side of the truck, each core serving to form the opening in a number of blocks simultaneously.

The cores are preferably formed of four angular pieces 20of sheet metal secured together at their ends by bolts 21 arranged in slots 22. The diagonally opposite angular pieces are forced apart by means of a plate wedge 23. The side edges of this wedge are preferably formed with a pair of inwardly bent flanges 24, and the wedge is provided with an opening 25. When the wedge is driven into place, as shown in Fig. 2, the diagonally opposite angular pieces 20 are forced apart, thus expanding'the core and locking it in place in the opening 9. One such wedge plate 23 is used ineach end of each core.

To remove the wedge plate it is only necessary to insert an old file or similar tool into the opening 25 of the wedge plate and pull out the wedge plate. The core then collapses by reason of the slots and bolts and is withdrawn from the blocks.

By the means above described I have produced a simple, yet strong and durable multiple block mold that is easily assembled, capable of being assembled to suit trucks of different sizes, and of being set up and taken down without the aid of skilled labor.

Having described my invention, what I claim and desire to secure by Letters Patent is:

1. In avmultiple concrete mold, the combination with a plurality of longitudinal partitions, of transverse partitions formed with longitudinal central portions ofi'set inwardly, said central portionsbeing hollow and formed withslotted openings adapted said slots and projecting through the inwardly oflset portions of the side walls, a set of end walls secured to the side walls, and a removable core extending longitudinally through the end walls and partitions,

the inwardly oii'set portions of the side ends of the concrete blocks, substantially as described.

3. The combination with a mold pallet, of a set of side walls having integral inward oii'sets extending along their longitudinal central portions from one end of the mold to the other and vertically slotted. a set of removable partitions fitting said slots and projecting through the inwardly offset portions of the side walls, a set of end walls secured to the side walls, and a removable core extending longitudinally through the end walls and partitions, the inwardly oii'set portions of the side Walls being adapted to form notches in the ends of the concrete blocks, substantially as described.

In testimony whereof, I affix mysignature in presence of two witnesses.

' FRANK ZAGELMEYER.

Witnesses:

JOSEPH V. CARPENTER, NELLTE M. ANGUS.

walls being adapted to form notches in the 

